在struts中使用checkbox实现批量删除

在struts中使用checkbox实现批量删除
JSP   <html:form StyleId = "delForm" action="/category.do?method=deleteColletion">
      <logic:iterate id="category" name="categories" >
         <tr>
            <td<input type="checkbox" name="ids" value="<bean:write name="category" property="id" />">td>
            <td>.....</td>
         </tr>
      </logic:iterate>
    <input type = "checkbox" name="isSelected" value = "true"
                          onclick = "if(delForm.isSelected.checked == true)
                                      {for (var i = 0; i < delForm.ids.length; i ++){delForm.ids[i].checked = true;}}
                                     else{for (var i = 0; i < delForm.ids.length; i ++){delForm.ids[i].checked = false;}}"/>                                             全选&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;    <a href="javascript:if(confirm('真的要删除选中栏目？'))delForm.submit()">删除所有选中栏目</a>
</html:form>
FormBean( 我使用的是DynaActionForm，所以在struts-config.xml中配置)
  <form-bean name="testingForm"  type="org.apache.struts.action.DynaActionForm">
    <form-property name="id"     type="java.lang.String"/>
    <form-property name="ids"    type="java.lang.Long[]"/>
     ........
  </form-bean> Action
    public ActionForward execute(ActionMapping mapping, ActionForm form,
        HttpServletRequest request, HttpServletResponse response)
        throws Exception {
        // 获取操作名
        DynaActionForm dyna = (DynaActionForm) form;
        // ids数组是所有被选中记录的id值
        Long[] ids = (Long[]) dyna.get("ids");
       // 调用相应dao方法，完成删除所有指定id操作
       return mapping.findForward(".....");
    }